Master valve



Jan. 8, 1924.

\ J. SULLIVAN MASTER VALVE 1921 2 Sheets-Sheetl Filed Feb. '7

A 7'TORNE) Jan. 8 1924. 1,480,126

J. M. SULLIVAN MASTER VALVE Filed Feb. '7. 1921 2 Sheets-Sheet -nmwm a 7D 62/011167 PIPE 7U AUXILIARY CHI/V05 T0 Reel/LA 7'05 Guam;

Patented Jan. 8, 1924.

JOSEPH M. SULLIVAN, 0F DETROIT, MICHIGAN.

MAsT-ER vaLvn,

Application filed February 7, 1921'. Serial No. 443,234.

To {ZZZ to 710m it may concern:

' Be it known that I, Josnrrr M. SULLIVAN, a. citizen of the United States of America, residing at Detroit, in the county of Wayn'e and State of: Michigan, have invented certain new and useful Improvements in Master Valves, of which the following is a specification, reference being had therein to the accompanying drawings.

In the operation of furnaces, boilers and various types of heating apparatus, using dampers and stokers, it is the present practice to employ automatic draft and stolrer regulators, and associated with such regulators are damper operating devices by which fluid underpressure may be utilized for opening dampers to regulate the draft in connection withthe heatingapparatus;

My invention aims to provide a master control valve which may be readily'installed between the draft and stoker regulator and a damper operating device, so that there will be a more positive operation of the damper operating device, and espeman where a large number of the damper operating devices are used in connection with a battery of boilers. The master valve permits of liquid or fluid pressure being distributed through a plurality of'tl'ainper or stoke].- operating devices with all of the devices under the control of a'single draft andstolrer regulator, and the construction entering into the master valve will be hereinafter described and then claimed.

Reference will now be had to the draw ings, wherein Figure 1 is a front elevation of a boiler installation having my master valve associated with a damper operating device, and draft and Stoker regulators; I

Fig. 2' is a vertical sectional view of the master valve;

Fig. 3 is a horizontal sectional view of the valve taken on the line 3+3 of Fig. 2, and

Fig. 4 valve.

In order that an installation of the master valves may be understood, Ishow, in Fig. 1, a battery of boilers 1 connected by branch flues 2 to an overhead flue 2 com municating with a stack or exhaust flue 3. In the overhead flue 2 is a master damper 4 having its shaft or pivot 5 provided with a grooved wheel 6, and trained over said wheel is a cable or flexible memis a side elevation of the master ber T liaving one end thereof provided with a weight 8 and this'weight is employed for maintaining the damper 4 normally open or moving it towards an opened position. To close or move the damper 4 against the action of the weight' 8, the cable or flexible member? i'sfadj'ustably connected to a piston fi vitlnn an auxiliarycylinder 10 suitably mounted below the overhead flue 2,

and preferably contiguous to theba'ttery ofboil'ers 1'. The auxiliary cylinder 10 is connected by a pipe 11"to my master valve in order that the auxiliary cylinder may conventional form of draftan'd stoker reg-' ulator"12,'which is" connected by a pipe 12 to the battery of boile'rs 1. It is in such aninstallationthat I'incorporate my master valve which will now be described referring to Figs/2 to 4 inclusive.

The refere ce numerals 13 and 14 denote thesections of. diaphragm casing and sandwiched between the casing sections is a laminated "diaphragm 15,"w hichis held in place by bolts -'16"an'd1 nuts 17 connecting the casing sections 13 and 14. The upper casing section 13 has a"concentric connection 18 fora' pipe 'l9extendin'g'to the regulator 12 a'nd'thii s pi 'ae'supplies water under pressure 'or other inoitive"liquid or fluid to the upper side of the"diaplirag'm 15, so the diaphragmuna flex downwardly by pressure in th'e upper portion of the diaphragm casing. i

"The casing section 14 has a concentric connection 20 fora coupling member 21 and connected to said coupling member is a cylindrical valve body 22,'w hich has the' lower end thereof provided with detachable plugs orcaps 23. The valve 'body 22 has side connections 24, 25 and'26 in'saidvalve body are'yalv'e seat partitions'27'xand' 28 with anintermediate-"baffleand guide partition 29, said guide and baflle partition having an opening 29 best shown in Fig. 3. These partitions are in superposed horizontal planes with the partition 28 cooperating with the valve body 22 in providing an upper valve chamber 30 and the partition 27 cooperating with the plug 23 and the valve body 22 in providing a lower valve chamber 31. The valve chamber 30 communicates with the connection 26 and the valve chamber 31 with the connection 24, while the baffle and guide 29 is in a horizontal plane with the connection and permits the connection 25 to communicate with either of the valve chambers 30 or 31 at predetermined times.

In the lower portion of the diaphragm casing is a diaphragm head 32 having a plunger 33 extending into the coupling member 21 and the lower end of said plunger engages the upper end of a valve rod 34 extending through the valve chamber 30 into the concentric guide portion of the baflle partition 29. It is in this baflie partition that the lower end of the valve rod 34 engages the upper end of another valve rod 35 extending through the valve chamber 31 into the plug or cap 23, and the valve rod 35 has a valve 36 within the chamber 31 adapted to seat on the partition 27, while the valve rod 34 has a valve 38 within the chamber 30 and adapted to seat on the partition 28. The lower end of the valve rod 35 and the upper end of the valve rod 34 have reduced notched portions 37 so that a screw driver or suitable tool may be employed for rotating the valve rods and thus grinding the valves 36 and 38 on the valve seats of the partition 27 and 28 respectively.

Holding the valve 36 normally seated on the partition 27 is the expansive force of a coiled spring 39 seated on the plug or cap 23, and there is suflicient clearance in the plug 23 for the valve rod 35 when the valve 36 is unseated, against the action of the spring 39, by flexure of the diaphragm 15 within the diaphragm casing.

Connected to the connection 24 of the valve body 22 is a pipe 40 which is also connected. to the regulator 12 and this pipe is adapted to upply water, at city pressure, to the master valve body 22, and when the valve 36 is unseated the water passes through the chamber 31, the partition 27 and into the connection 25, said connection communicating with the pipe 11 which leads to the auxiliary cylinder 10 of the damper operating device. It is now apparent that the master valve supplies water pressure directly to the damper opening device and when pressure against the upper side of the diaphragm pressure 15 is released and the diaphragm assumes normal position with the valve 36 closed, the auxiliary cylinder 10 may drain back through the pipe 11 with the water passing through the partition 28 into the upper valve chamber 30, and into a drain or exhaust pipe 41, Which is also connected to the regulator 12 by a branch pipe 42 pro vided with a check valve 43. Under the influence of the weight 8 the damper 4 is adjusted and the water in the auxiliary 10 caused to exhaust, and this is accomplished with the valve 36 closed and the valve 38 open.

' During the shifting of these valves to admit water under pressure to the connection 25, the battle partition 29 serves to prevent the water under pressure from passing through the partition 28 into the drain or exhaust connection 26, and since the operation of the valves 36 and 38 is almost instantaneous, it is practically impossible for the water to exhaust instead of entering the connection 25 leading to the damper operating device.

My invention in its broadest aspect involves the association of the master valve, the damper operatingdevice and the regulator, and the two last mentioned elements have been more or less diagrammatically illustrated as the construction of each does not enter into my invention; the master valve being applicable to various types of regulators and pressure operated dampers.

While in the drawing there is illustrated a preferred embodiment of my invention, it is to be understood that the structural elemets are susceptible to such changes, in size hape and manner of assemblage, as "fall within the scope of the appended claims.

What I claim is:

1. A valve body having an inlet connection, a drain connection, an outlet connection, valve seat partitions between all of said body connections, a baflle between said pan titions, valve rods slidable in said valve body, valves on said rods adapted to seat against said partitions, a diaphragm adapted to shift said valves in one direction, and means in said valve body adapted to shift said valves in an opposite direction.

2. A valve body as in claim 1, characterized by said baflie receiving said valve rod and each rod being separately rotatable for grinding the valve seats of said parti tions.

In testimony whereof I ailix my signature in presence of two witnesses.

JOSEPH M. SULLIVAN.

Witnesses:

KARL l-I. BUTLER, ANNA M. Done. 

